Hydroperoxide isomerase ALOXE3 (ALOXE3), human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 1-711aa. Protein Length: Full Length. Tag Info: C-terminal 6xHis-tagged. Target Protein Sequence: MAVYRLCVTT GPYLRAGTLD NISVTLVGTC GESPKQRLDR MGRDFAPGSV QKYKVRCTAE LGELLLLRVH KERYAFFRKD SWYCSRICVT EPDGSVSHFP CYQWIEGYCT VELRPGTART ICQDSLPLLL DHRTRELRAR QECYRWKIYA PGFPCMVDVN SFQEMESDKK FALTKTTTCV DQGDSSGNRY LPGFPMKIDI PSLMYMEPNV RYSATKTISL LFNAIPASLG MKLRGLLDRK GSWKKLDDMQ NIFWCHKTFT TKYVTEHWCE DHFFGYQYLN GVNPVMLHCI SSLPSKLPVT NDMVAPLLGQ DTCLQTELER GNIFLADYWI LAEAPTHCLN GRQQYVAAPL CLLWLSPQGA LVPLAIQLSQ TPGPDSPIFL PTDSEWDWLL AKTWVRNSEF LVHENNTHFL CTHLLCEAFA MATLRQLPLC HPIYKLLLPH TRYTLQVNTI ARATLLNPEG LVDQVTSIGR QGLIYLMSTG LAHFTYTNFC LPDSLRARGV LAIPNYHYRD DGLKIWAAIE SFVSEIVGYY YPSDASVQQD SELQAWTGEI FAQAFLGRES SGFPSRLCTP GEMVKFLTAI IFNCSAQHAA VNSGQHDFGA WMPNAPSSMR QPPPQTKGTT TLKTYLDTLP EVNISCNNLL LFWLVSQEPK DQRPLGTYPD EHFTEEAPRR SIAAFQSRLA QISRDIQERN QGLALPYTYL DPPLIENSVS I. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: Non-heme iron-containing lipoxygenase which is atypical in that it displays a prominent hydroperoxide isomerase activity and a reduced lipoxygenases activity. The hydroperoxide isomerase activity catalyzes the isomerization of hydroperoxides, derived from arachidonic and linoleic acid by ALOX12B, into hepoxilin-type epoxyalcohols and ketones. In presence of oxygen, oxygenates polyunsaturated fatty acids, including arachidonic acid, to produce fatty acid hydroperoxides. In the skin, acts downstream of ALOX12B on the linoleate moiety of esterified omega-hydroxyacyl-sphingosine (EOS) ceramides to produce an epoxy-ketone derivative, a crucial step in the conjugation of omega-hydroxyceramide to membrane proteins. Therefore plays a crucial role in the synthesis of corneocytes lipid envelope and the establishment of the skin barrier to water loss. In parallel, it may have a signaling function in barrier formation through the production of hepoxilins metabolites. Also plays a role in adipocyte differentiation through hepoxilin A3 and hepoxilin B3 production which in turn activate PPARG. Through the production of hepoxilins in the spinal cord, it may regulate inflammatory tactile allodynia. Reference: "Dioxygenase activity of epidermal lipoxygenase-3 unveiled: typical and atypical features of its catalytic activity with natural and synthetic polyunsaturated fatty acids." Zheng Y., Brash A.R. J. Biol. Chem. 285:39866-39875(2010). Function: nan